Ruri Hadou is a character from Zanmataisei Demonbane, a mecha-fantasy visual novel and anime series. She is a young girl associated with the mysterious and powerful forces surrounding Arkham City and the conflict over the Necronomicon. Ruri plays an important supporting role in the story, often tied to the larger supernatural events and the struggles between humans, sorcerers, and ancient threats. Her presence helps connect the series’ emotional and plot-driven moments, adding depth to the cast.